It forces the chassis to truncated mode which can reduce the performance of the chassis. But that only applies in high packet rates. It also opens the chassis to bus stalls if the blade has to be replaced.
LR Mack McBride Network Architect -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jeffrey G. Fitzwater Sent: Monday, October 31, 2011 1:00 PM To: [email protected] Subject: [c-nsp] 6500 fabric switching mode ?? Will the switching processor or routing processor on a sup720-3B incur more CPU load if its switching mode is BUS vs dCEF? It looks like it would be best for me to upgrade mod 3 to something that supports a fabric connection. If I run "show fabric switching-mode" on 6513 I get the following... Note the sup runs in BUS mode because of the non-fabric module in slot 3.... ---------------------------------------------------------------------- Global switching mode is Truncated dCEF mode is not enforced for system to operate Fabric module is not required for system to operate Modules are allowed to operate in bus mode Truncated mode is allowed Module Slot Switching Mode 1 Crossbar 2 Crossbar 3 Bus 4 Crossbar 5 Crossbar 6 Crossbar 7 Bus 9 dCEF 10 dCEF 11 Crossbar 12 dCEF 13 Crossbar ---------------------------------------------------------------------- Any comments please... Jeff Fitzwater OIT Network Systems Princeton University _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
